by Jeka World Photography on Flickr.Oia is a former community on the islands of Thira and Therasia, in the Cyclades, Greece.

by Jeka World Photography on Flickr.Oia is a former community on the islands of Thira and Therasia, in the Cyclades, Greece.

Stairs, Royal Castle, Warsaw, Poland

Stairs, Royal Castle, Warsaw, Poland

Spiral staircase in the Baron’s Palace, Heliopolis District, Cairo, Egypt

Spiral staircase in the Baron’s Palace, Heliopolis District, Cairo, Egypt